La Crescenta addition floats a treehouse view above original home

Sakhiba Khairullah looks out from the master bedroom in the front of the house, where a protected oak tree stands.  (Anne Cusack / Los Angeles Times)

A large picture window was added in the living room to allow more light.  (Anne Cusack / Los Angeles Times)

A second-floor bedroom in the back of the house was part of the addition.  (Anne Cusack / Los Angeles Times)

Sakhiba Khairullah, seen in the kitchen, and husband Samad Firdosy replaced laminate counters with granite counters.  (Anne Cusack / Los Angeles Times)

In the dining room, wood flooring replaced stone flooring.  (Anne Cusack / Los Angeles Times)

The addition is seen from the backyard.  (Anne Cusack / Los Angeles Times)

Branches from the oak tree shield the master bedroom, with its bank of windows, from neighbors’ view.   (Anne Cusack / Los Angeles Times)